Thank you for your interest in my project ;D . It is nice to see others getting ideas from my thread. I have been moving fairly slow due to some money issues that i have run into. Yet, it is getting there. Considering the money issue, i have decided to tear apart the engines to verify that the peices from both the original and donor engines mate up properly. So, with a case of beer, 2 days, a shop manual, some ziplock bags, a sharpie, and an assortment of tools, the digging began. Before you start the tear down, remove the spark plugs and pour a little oil in each cylinder. Let that sit at least over night. This will help loosen the pistons if necessary to help in removing the cylinders.
Of course, drain the oil first!! Then, with the shop manual, in hand begin the tear down. For a beginner, this was a fairly easy engine to tear down. The philips head bolts were kinda a pain. Using a hand impact driver i loosened most of them. I striped a couple :-\ . So, with a chissel and hammer i slowly got them to turn till they broke loose. Then Viola!! The cam cover is off
Now, the shop manual states that you require a special tool to slide out the rocker arm pivots ??? ... I used my finger and a sharpie to slide them out. If you are a beginner, remember to read over each section of the manual to ensure that you understand what you are doing before doing it. Also make sure that everything that comes off the top end of the engine is labeled according to cylinder. 1 to 4 from left to right as if you were sitting on the bike.
Once you are at this point, there is nothing holding the cam shaft and rocker brackets on. Simply tap them with a soft hammer until they pop off.
I am trying to not go into too much detail considering that you should have the manual in front of you. I am just trying to give some pointers in certain situations. Feel free to ask any questions.
Now loosen the nuts holding on the cylinder heads and remove them. I am not too concerned with the condition of the valve seats or the cylinder walls.
Now, the fun part... the cylinders. Hopefully, you let some oil sit in the cylinders to make sure they slide somewhat easily. Just wiggle the cylinders back and forth, without damaging the bolts. It will eventually come off. Then, remove the pistons by pulling the clip holding in the pivot. And again, using a sharpie, i pushed out the pivots. Keep track of which piston is which. I put them in labeled ziplock bags along with the pivot, rings, and clips. I will be replacing the rings and clips, but i like to be over cautious when doing something i have never done.
At this point you should have something like this sitting next to your lower end.
Now, it is time to seperate the two halves of the engine casing.
I then removed the internals and set them to the side. Then, with another case of beer, I repeated all these steps on the donor engine. And BAM!!! I have two completely disassembled engines.
Now is the moment of truth! Are the mating surfaces of the engine casing of the '70 compatible with the cylinders of the '74? YES!! THEY ARE ;D
Next, i am going to prep the cylinders, heads, and case for cleaning.
